List of Famous people who died at 15

Kirsten Marina Costas was an American high school student who was murdered by her classmate, Bernadette Protti, in June 1984.

Tammy Lyn Homolka was the younger sister and victim of Canadian murderer Karla Homolka and her partner, Paul Bernardo. On 24 December 1990, less than two weeks before Tammy's 16th birthday, Karla Homolka and her fiancé Bernardo plied Tammy with alcoholic drinks laced with the sedative Halcion. When she became unconscious, the two raped her. Tammy became sick while sedated and died. After failed attempts to revive her, Karla covered up evidence of the assault and called an ambulance. Her official cause of death was listed as choking to death on her own vomit, and was believed at the time to have been an accident. After Paul Bernardo and Karla Homolka were arrested for the murders of Leslie Mahaffy and Kristen French, Tammy Homolka's body was exhumed. She is interred at Victoria Lawn Cemetery in St. Catharines, Ontario.

Berkin Elvan was a 15-year-old Kurdish–Turkish boy who was hit on the head by a tear-gas canister fired by a police officer in Istanbul during the June 2013 anti-government protests in Turkey. He died on March 11, 2014. Lawyers representing the family said Elvan's condition worsened over the last week of his life, with his weight dropping to 16 kg from 45 kg. Widespread demonstrations erupted following Berkin's death.

Eren Bülbül was a Turkish 15-year-old boy from Maçka, Trabzon who was killed by the PKK in part of a Turkish military patrol during the Kurdish-Turkish conflict.

Tina Michelle Fontaine was a First Nations teenage girl who was reported missing and died in August 2014. Her case is considered among the high number of missing and murdered Indigenous women of Canada. Her death renewed calls by activists for the government to conduct a national inquiry into the issue.

Amanda Michelle Todd was a 15-year-old Canadian student and victim of cyberbullying who hanged herself at her home in Port Coquitlam, British Columbia, Canada. Before her death, Todd posted a video on YouTube in which she used a series of flash cards to tell her experience of being blackmailed into exposing her breasts via webcam, and of being bullied and physically assaulted. The video went viral after her death, resulting in international media attention. The video has had more than 14 million views as of February 2021. The Royal Canadian Mounted Police and British Columbia Coroners Service launched investigations into the suicide.

Randolph Evans (1961–1976) was a 15-year-old Brooklyn boy who was shot and killed by NYPD officer Robert Torsney on November 25, 1976. Evans was a ninth-grader at Franklin K. Lane High School in Brooklyn at the time of the shooting.

Kristen Dawn French was a Canadian schoolgirl who was murdered by Karla Homolka and Paul Bernardo. She was interred at Pleasantview Memorial Gardens, Thorold, Ontario, Canada.